package com.zsl.casuallyheart.util;
import android.util.SparseArray;
import android.view.View;

/**
 * ViewHoldwer的工具类
 * 详细使用说明查看http://zhengsonglan.lofter.com/post/1cb6fd72_28d79a3
 * @author zsl
 * @date 2014-10-9 下午6:02:06
 * @version v1.0
 */
public class ViewHolder {
    @SuppressWarnings("unchecked")
    public static <T extends View> T get(View view, int id) {
        SparseArray<View> viewHolder = (SparseArray<View>) view.getTag();
        if (viewHolder == null) {
            viewHolder = new SparseArray<View>();
            view.setTag(viewHolder);
        }
        View childView = viewHolder.get(id);
        if (childView == null) {
            childView = view.findViewById(id);
            viewHolder.put(id, childView);
        }
        return (T) childView;
    }
}
